1
|
Escamilla-Mejía JC, Hidalgo-Carrillo J, Martín-Gómez J, López-Tenllado FJ, Estévez R, Marinas A, Urbano FJ. Biochars from Olive Stones as Carbonaceous Support in Pt/TiO 2-Carbon Photocatalysts and Application in Hydrogen Production from Aqueous Glycerol Photoreforming. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091511. [PMID: 37177056 PMCID: PMC10179866 DOI: 10.3390/nano13091511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023]
Abstract
Several biochars were synthesized from olive stones and used as supports for TiO2, as an active semiconductor, and Pt as a co-catalyst (Pt/TiO2-PyCF and Pt/TiO2-AC). A third carbon-supported photocatalyst was prepared from commercial mesoporous carbon (Pt/TiO2-MCF). Moreover, a Pt/TiO2 solid based on Evonik P25 was used as a reference. The biochars used as supports transferred, to a large extent, their physical and chemical properties to the final photocatalysts. The synthesized catalysts were tested for hydrogen production from aqueous glycerol photoreforming. The results indicated that a mesoporous nature and small particle size of the photocatalyst lead to better H2 production. The analysis of the operational reaction conditions revealed that the H2 evolution rate was not proportional to the mass of the photocatalyst used, since, at high photocatalyst loading, the hydrogen production decreased because of the light scattering and reflection phenomena that caused a reduction in the light penetration depth. When expressed per gram of TiO2, the activity of Pt/TiO2-PyCF is almost 4-times higher than that of Pt/TiO2 (1079 and 273 mmol H2/gTiO2, respectively), which points to the positive effect of an adequate dispersion of a TiO2 phase on a carbonaceous support, forming a highly dispersed and homogeneously distributed titanium dioxide phase. Throughout a 12 h reaction period, the H2 production rate progressively decreases, while the CO2 production rate increases continuously. This behavior is compatible with an initial period when glycerol dehydrogenation to glyceraldehyde and/or dihydroxyacetone and hydrogen predominates, followed by a period in which comparatively slower C-C cleavage reactions begin to occur, thus generating both H2 and CO2.
Collapse
Affiliation(s)
- Juan Carlos Escamilla-Mejía
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Edificio Marie Curie, Campus de Rabanales, Universidad de Córdoba, E-14071 Córdoba, Spain
| | - Jesús Hidalgo-Carrillo
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Edificio Marie Curie, Campus de Rabanales, Universidad de Córdoba, E-14071 Córdoba, Spain
| | - Juan Martín-Gómez
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Edificio Marie Curie, Campus de Rabanales, Universidad de Córdoba, E-14071 Córdoba, Spain
| | - Francisco J López-Tenllado
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Edificio Marie Curie, Campus de Rabanales, Universidad de Córdoba, E-14071 Córdoba, Spain
| | - Rafael Estévez
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Edificio Marie Curie, Campus de Rabanales, Universidad de Córdoba, E-14071 Córdoba, Spain
| | - Alberto Marinas
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Edificio Marie Curie, Campus de Rabanales, Universidad de Córdoba, E-14071 Córdoba, Spain
| | - Francisco J Urbano
- Departamento de Química Orgánica, Instituto Químico para la Energía y el Medioambiente (IQUEMA), Edificio Marie Curie, Campus de Rabanales, Universidad de Córdoba, E-14071 Córdoba, Spain
| |
Collapse
|
2
|
Sirasitthichoke C, Hoang D, Phalak P, Armenante PM, Barnoon BI, Shandil I. Computational prediction of blend time in a large-scale viral inactivation process for monoclonal antibodies biomanufacturing. Biotechnol Bioeng 2023; 120:169-183. [PMID: 36224707 DOI: 10.1002/bit.28264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/26/2022] [Accepted: 10/09/2022] [Indexed: 11/08/2022]
Abstract
Viral inactivation (VI) is a process widely used across the pharmaceutical industry to eliminate the cytotoxicity resulting from trace levels of viruses introduced by adventitious agents. This process requires adding Triton X-100, a non-ionic detergent solution, to the protein solution and allowing sufficient time for this agent to inactivate the viruses. Differences in process parameters associated with vessel designs, aeration rate, and many other physical attributes can introduce variability in the process, thus making predicting the required blending time to achieve the desired homogeneity of Triton X-100 more critical and complex. In this study we utilized a CFD model based on the lattice Boltzmann method (LBM) to predict the blend time to homogenize a Triton X-100 solution added during a typical full-scale commercial VI process in a vessel equipped with an HE-3-impeller for different modalities of the Triton X-100 addition (batch vs. continuous). Although direct experimental progress of the blending process was not possible because of GMP restrictions, the degree of homogeneity measured at the end of the process confirmed that Triton X-100 was appropriately dispersed, as required, and as computationally predicted here. The results obtained in this study were used to support actual production at the biomanufacturing site.
Collapse
Affiliation(s)
- Chadakarn Sirasitthichoke
- Department of Manufacturing Science and Technology, Bristol Myers Squibb Company, Devens, Massachusetts, USA.,Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey, USA
| | - Duc Hoang
- Department of Manufacturing Science and Technology, Bristol Myers Squibb Company, Devens, Massachusetts, USA.,Department of Chemical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts, USA
| | - Poonam Phalak
- Department of Manufacturing Science and Technology, Bristol Myers Squibb Company, Devens, Massachusetts, USA
| | - Piero M Armenante
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, New Jersey, USA
| | - Barak I Barnoon
- Department of Manufacturing Science and Technology, Bristol Myers Squibb Company, Devens, Massachusetts, USA
| | - Ishaan Shandil
- Department of Manufacturing Science and Technology, Bristol Myers Squibb Company, Devens, Massachusetts, USA
| |
Collapse
|
3
|
Ohol RM, Vasuki B. Piezoelectric Actuated Stirrer for Solid Drug Powder-Liquid Mixing. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2022. [DOI: 10.1134/s0040579522060148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
4
|
Barrington H, Dickinson A, McGuire J, Yan C, Reid M. Computer Vision for Kinetic Analysis of Lab- and Process-Scale Mixing Phenomena. Org Process Res Dev 2022; 26:3073-3088. [PMID: 36437899 PMCID: PMC9680030 DOI: 10.1021/acs.oprd.2c00216] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Indexed: 11/06/2022]
Abstract
A software platform for the computer vision-enabled analysis of mixing phenomena of relevance to process scale-up is described. By bringing new and known time-resolved mixing metrics under one platform, hitherto unavailable comparisons of pixel-derived mixing metrics are exemplified across non-chemical and chemical processes. The analytical methods described are applicable using any camera and across an appreciable range of reactor scales, from development through to process scale-up. A case study in nucleophilic aromatic substitution run on a 5 L scale in a stirred tank reactor shows how camera and offline concentration analyses can be correlated. In some cases, it can be shown that camera data hold the power to predict reaction progress.
Collapse
Affiliation(s)
- Henry Barrington
- Department
of Pure & Applied Chemistry, University
of Strathclyde, Royal
College Building 204 George Street, Glasgow G1 1XW, U.K.
| | - Alan Dickinson
- Colorants
Technology Centre, FUJIFILM Imaging Colorants, Earls Road, Grangemouth FK3 8XG, U.K.
| | - Jake McGuire
- Department
of Pure & Applied Chemistry, University
of Strathclyde, Royal
College Building 204 George Street, Glasgow G1 1XW, U.K.
| | - Chunhui Yan
- Department
of Pure & Applied Chemistry, University
of Strathclyde, Royal
College Building 204 George Street, Glasgow G1 1XW, U.K.
| | - Marc Reid
- Department
of Pure & Applied Chemistry, University
of Strathclyde, Royal
College Building 204 George Street, Glasgow G1 1XW, U.K.,
| |
Collapse
|
5
|
Alekseev KA, Mukhametzyanova AG. Measurement of Velocity Fields in a Machine with a Two-Blade Mixer via Digital Tracer Visualization. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2022. [DOI: 10.1134/s004057952201002x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Barabash VM, Belevitskaya MA, Kulov NN. Influence of Wake Flows on the Processes of Heat and Mass Exchange in Apparatuses with Mixing Devices. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2022. [DOI: 10.1134/s0040579522010031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Nabila Ouazib, Salhi Y, El-Khider SI-Ahmed, Legrand J, Arhaliass A, Degrez G. Numerical Simulation of Taylor–Couette Flows with Rotating Outer Wall Using a Hybrid Spectral/Finite Element Method. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2021. [DOI: 10.1134/s0040579521060087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
8
|
Magnetically Agitated Nanoparticle-Based Batch Reactors for Biocatalysis with Immobilized Aspartate Ammonia-Lyase. Catalysts 2021. [DOI: 10.3390/catal11040483] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
In this study, we investigated the influence of different modes of magnetic mixing on effective enzyme activity of aspartate ammonia-lyase from Pseudomonas fluorescens immobilized onto epoxy-functionalized magnetic nanoparticles by covalent binding (AAL-MNP). The effective specific enzyme activity of AAL-MNPs in traditional shake vial method was compared to the specific activity of the MNP-based biocatalyst in two devices designed for magnetic agitation. The first device agitated the AAL-MNPs by moving two permanent magnets at two opposite sides of a vial in x-axis direction (being perpendicular to the y-axis of the vial); the second device unsettled the MNP biocatalyst by rotating the two permanent magnets around the y-axis of the vial. In a traditional shake vial, the substrate and biocatalyst move in the same direction with the same pattern. In magnetic agitation modes, the MNPs responded differently to the external magnetic field of two permanent magnets. In the axial agitation mode, MNPs formed a moving cloud inside the vial, whereas in the rotating agitation mode, they formed a ring. Especially, the rotating agitation of the MNPs generated small fluid flow inside the vial enabling the mixing of the reaction mixture, leading to enhanced effective activity of AAL-MNPs compared to shake vial agitation.
Collapse
|
9
|
Abiev RS. Impinging-Jets Micromixers and Microreactors: State of the Art and Prospects for Use in the Chemical Technology of Nanomaterials (Review). THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2021. [DOI: 10.1134/s0040579520060019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
10
|
Bulyanitsa AL, Belousov KI, Evstrapov AA. Using Analytical Solutions to Evaluate the Variability of the Distribution of Concentrations of the Components of Specific Reactions in Microfluidic Systems. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2020. [DOI: 10.1134/s0040579520010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
11
|
In-syringe dispersive liquid-liquid microextraction using deep eutectic solvent as disperser: Determination of chromium (VI) in beverages. Talanta 2020; 206:120209. [DOI: 10.1016/j.talanta.2019.120209] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/28/2019] [Accepted: 07/31/2019] [Indexed: 01/25/2023]
|
12
|
Sergeev YS, D’yakonov AA, Sergeev SV, Gordeev EN. Increasing the Homogeneity of Liquid Aerated Concrete Mixtures from Dispersed Brittle Materials by Their Vibromixing in the Manufacture of Building Products. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2019. [DOI: 10.1134/s004057951905035x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
13
|
Abiev RS. Process intensification in chemical engineering: general trends and Russian contribution. REV CHEM ENG 2019. [DOI: 10.1515/revce-2018-0040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Minimization of the costs with simultaneous increase in the raw materials and energy use efficiency is a challenge for the modern world. One of the most effective tools to solve this task is the use of process intensification (PI), first proposed by Ramshaw C. The incentive for process intensification, Proceedings, 1st Intl. Conf. Proc. Intensif. for Chem. Ind., 18, BHR Group, London, 1995, p. 1. and then extended by Stankiewicz AI, Moulijn JA. Process intensification: transforming chemical engineering. Chem Eng Prog 2000: 22–34. In the presented review, some principles of PI in chemical engineering and their application for wide variety of processes is discussed. The role of the Russian scientist with a research background is carried out in other countries.
Collapse
Affiliation(s)
- Rufat S. Abiev
- St. Petersburg State Institute of Technology (Technical University) , 26 Moskowsky Pr. , St. Petersburg 190013 , Russian Federation
| |
Collapse
|